read up on (something)

read up on (something)

To increase one's knowledge of a topic by reading about it. I better read up on this material before I try to teach it tomorrow.
See also: on, read, up

read up (on someone or something)

to find and read some information about someone or something. Please go to the library and read up on George Washington. I don't know anything about that. I guess I need to read up.
See also: read, up

read up

Study or learn by reading, as in I don't know much about childhood illnesses, but I can always read up on them. [First half of 1800s]
See also: read, up

read up on

v.
To study or learn something by reading: I read up on the places I plan to visit before I travel.
See also: on, read, up